/*
 * Copyright (C) 2009 aileron.cc
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package cc.aileron.dao.db;

import java.sql.Connection;
import java.sql.SQLException;
import java.util.Properties;

import javax.sql.DataSource;

import cc.aileron.accessor.PojoAccessorValueNotFoundException;
import cc.aileron.accessor.PojoPropertiesNotFoundException;
import cc.aileron.accessor.convertor.PojoAccessorConvertorFactory;

import com.google.inject.Guice;
import com.google.inject.Provider;

/**
 * G2DataSource
 *
 * @author Aileron
 */
public class G2DaoConnectionProvider implements Provider<Connection>
{
    @Override
    public Connection get()
    {
        try
        {
            return dataSource.getConnection();
        }
        catch (final SQLException e)
        {
            throw new RuntimeException(e);
        }
    }

    /**
     * @param dataSourceClass
     * @param properties
     * @throws PojoPropertiesNotFoundException
     * @throws PojoAccessorValueNotFoundException
     */
    public G2DaoConnectionProvider(
        final Class<? extends DataSource> dataSourceClass,
        final Properties properties) throws PojoAccessorValueNotFoundException,
            PojoPropertiesNotFoundException
    {
        this.dataSource = Guice.createInjector()
            .getInstance(PojoAccessorConvertorFactory.class)
            .create(properties)
            .to(dataSourceClass);
    }

    /**
     * @param dataSource
     */
    public G2DaoConnectionProvider(final DataSource dataSource)
    {
        this.dataSource = dataSource;
    }

    /**
     * ds
     */
    public final DataSource dataSource;
}
